Brand new sealed King mattress topper 4 inch

This is a brand new, still-sealed Bedlore King size mattress topper. It's a 4-inch memory foam dual-layer design with cooling gel and a 2-inch pillow top. I bought it but it's not the right size for my bed. Size: King, Thickness: 4 inches, Material: Memory Foam, Gel, Features: Dual Layer, Cooling Gel, Pillow Top. If the ad is up, it's available!